p pere



(No Model.) 2 sheetsnsheef.V 1.

' J. DNECHAD, PRB.

SAFETY GAR TRUCK.

No. 303,713. Patented Aug. 19, 1884.

(No Model.) 2 Sheets-Sheet 2.

J. DENEGHAUD. PRE.

SAFETY GAR TRUCK.

N0. 303,712. 3. Patented Aug. 19, 1884.

llrirrnn STATES PATENT @Prion SAFETY C SPECIFICATION forming part ofLetters Patent No. 303,713, dated August 19, 1884.

Application filed May l5, 1884. (No model.)

'anism in such manner as to insert guard-rollers,which are mounted intheir ends intothe grooves in the rails, orto withdraw them therefrom.

My invention consists in asingle rigid arched arm carrying rollers inits ends and mounted under the truck, and in suitable mechanism by whichsaid arm is lowered and turned to extend .transversely and insert itsrollers inthe grooves of the rails, and by which it is turned again towithdrawvits rollers, and is raised to a position parallel with andabove the plane of the rails, all of which I shall hereinafter fullyexplain.

The object of my invention is to prevent derailment of the cars or ofthe locomotive to which the devices may be attached.

Referring to the accompanying dra-wings, Figure 1 is an end view of acar or locomotive, showing my safety-guard applied, the rollers beingwithdrawn from the grooves inthe rails. Fig. 2 is a similar view showingthe rollers inserted inthe grooves. Fig. Sis a side view showing amodified mechanism by which the guard-arm is operated, the rollers beingin position. Fig. 4. is a similar view of same, showing the arm raisedand the rollers withdrawn. Fig. 5 is an end view of same.

A is a portion of the frame of a car or locomotive mounted on wheels B.

C are the rails, having grooves c.

Secured to frame or car A is a rigid metal frame, J, through which 'andthrough the car A is passed a spindle, D, to the lower end of which isfirmly secured a rigid arm, E, having downwardly and outwardly turnedends, in which the guard-rollers c are mounted. rIhe shape of this armis curved upwardly or arched, as shown, in order to avoid obstructions,such as the raised center of the roadbed or crossy `roads, when the armis lowered to insert its l rollers in the grooves of the rails, as shownin Fig. 2. i

Upon frame J is mounted a curved inclined plane or cam, F, upon which anarm or pin, d, secured to the spindle D, is adapted to travel, wherebysaid spindle is raised or lowered. A shoulder, f, on the top of the camlimits the upward movement of pin d, as in Fig. l; and a pin, f limitsits downward movement, as in Fig. 2.

Upon top of the spindle D is a cranlcarm, G, to which is pivoted the endof a bent rod, II, the other end of which extends backwardly andparallel with frame A, and is secured to the short arm of anelbow-lever, I, pivoted to said frame. The transverse portion of thebent rod H passes by an inclined plane or-cam, K, which guides it. Vhenthe long arm of lever I is depressed, whereby, as in Fig. l, its shortarm is raised, the bent rod Il is carried up, and thereby pulls on thecrankarm G, turning thespi'ndlcl) and arm E, said spindle and arm at thesame time rising by reason of the arm d, traveling up the cam F,wherebythe arm is turned parallel, or nearly so, with the rails, and is raisedup out of the way. Vhen the long end of lever I israised, as in Fig. 2,the bent rod II is depressed and forces the crankarm G away to turn thespindle and carry the arm E across the track, and at the same time'lowers it to the plane of the grooves in the rails into which therollers project; but I do not confine myself to the mechanism thus fardescribed for accomplishing this movement of the arm E.

In Figs. 3, 4, 5 Ishow amodified mechanism. The spindle Dis providedwith the crank-arm G,which in this casc is under instead of above car A.Vith this is connected a rod, L, the other end of which is pivoted tothe lower end ed to engage with a rack, fm. rIhe movement ofthe lever Mturns the spindle D and the arm E transversely, as in Figs. 3, 5, orparallel with the rails, as in Fig. 4; but, in order to raise the armwhen turned away and to lower it when turned across, I have theelbow-lever N pivoted by one end or arm to a short `bear1- ing, n, undercar A. Its other arm is bifurcated, and embraces the spindle D- underthe collar or head g of the crank-arm G. At its angle is a pin or stud,o, upon which is slotted of a lever, M, pivoted on the car A, and adapt-Y IOO a bar, O, the other end of which is pivoted to the lower end oflever M. The movement of the lower end of this lever toward the spindleforces the bar O down until it is limited by its slot, as in Fig. 4,when it presses against the studo and forces the elboW-leverN to raisethe spindle. Vhen the bar O is withdrawn, the weight of the spindlecauses it to drop, and it is stopped by any suitable means above, as bya collar, p.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. Inasafety car-truck, arigid arm supported under the truclgand havingrollers mounted in its ends, in combination With a mechanism by whichsaid arm is lowered to carry its ends down to the plane of the groovesin the rails of the road-bed, and turned transversely to insert itsrollers in said grooves, and by which it is turned parallel with saidrails to free its rollers therefrom, and raised above-the plane of thegrooves therein, substantially as herein described.

2. In a safety car-truok, the bent or arched arm E, having rollers c inits ends, and the spindle D, upon Which said arm is mounted, incombination with a mechanism by which said spindle is lowered andturned, to drop and turn the arm transversely to fit its rollers intothe grooves in the rails of the road-bed, and is turned and raised tofree the rollers from the rails and raise the arm, substantially asherein described.

3. In a safety cartruck', the rigid arm E, having rollers c in its ends,and the spindle AD, upon which the arm is mounted, in combion thespindle, adapted to travel onthe caml between the shoulder f and pin f,the crankarin G on top of the spindle, the bent rod II, inclinedguide-plate K, and elbow-lever I, all arranged and operati ngsubstantially as hcrei n described. p

In Witness whereof I have hereunto set my hand.

JEANTY DnNnoHAUD, Vitnesses:

C. D. Corn, S. H. NoURsn.

